Process for producing organic chlorides



rATENr OFFICE.

RICHARD QTEUBM, or saonmw, mronreair.

PROCESS FOR PRODUCING QEGANIC CELOEZIDE5.

No Drawing.

lhis invention relates to a process for producing organic chlorides, such as chloroform, tetrachlorethylene and the like, and has for its object to manufacture them at considerably lower costs than was possible with the methods hitherto in use.

For this purpose It compress dry and purified hydrochloric acid. gas (HCl) and 1 com press dry carbon monoxide (CO) and I then mix the compressed gases preferably in proportion of three volumes of hydrochloric acid gas to one volume of carbon. monoxide;

the volumes measured at the same pressuretemperature, I use a pressure prefer-- abiy ranging between 1000 lbs. to 3000 lbs.

square inch and subject the gas mixture this pressure to the contact process, the vessel containing the contact mass, the contact itself and the gas mixture passing therethrough I keep during the operation at a temperature preferably between e50 F and 350 16.

As contact mass 1 use metal oxidesor metal chlorides or a mixture of both. For

instance, 1 use a mixture of equal parts by weight of granulated nickel oxide (NiO), granulated aluminum oxide x 9 l U and granulated copper oxide (Coil), but any contact mass answering the purpose h employed.

as mixture leaving the contact vessel whereby the organic chlorides prochloroform tetrachlorethye are cor This rerel-rowing action may "formulae 1 co+arioi=ce and The uncondensed compressed then passed again through the resh dry compressed h acid and dry compressed c oxide are, gradually as the occasion added to the recirculating unc gases in order to maintain the pro sure and the proper proportion of the :ca, ing gases in the contact vessel.

The condensed products of reac Application filed August 20, 1925. Serial No. 51,480.

ly'chloroform and tetrachlorethylene, are removed from the system and separated from each other according to well-known methods.

claim:

l. The method of oducing chloroform, terachlorethylene the like, which consists in compressing dry and purified hydrochloric acid gas and pure and dry carbon monoxide, to a pressure of from 10003000 lbs. per square inch, in mixing the compressed gases and in treating the mixture of compressed gases by the contact process at a high temperature, that is above 400 F.

2. The method of producing chloroform, tetrachlorethylene and the like, which consists in compressing dry and purified hydrochloric acid gas and pure and dry carbon monoxide, to a pressure of from 1000-3000 450 and 7 50 F., and in cooling the gases which leave the vessel, whereby the products of reaction, chloroform, tetrachlorethylene etc. are condensed, the uncondensed gases being recirculated through the contact yessel under addition of dry compressed hydro-= chloric acid gas and dry carbon monoxide to maintain therein the proper pressure and the proper proportion of the reacting gases.

3. The method of producing chloroform, tetrachlorethylene and the like, which consists in compressing dry and purified hydrochloric acid gas and pure and dry carbon monoxide, to a pressure of from 1000-8000 lbs. per square inch, in mixing the compressed gases in theoretical proportions and l treating the mixture of compressed gases by contact process, at a high temperare, that is abo e 400 F., the contact mass iining equal? parts by Weight of granud nickei oxide (Ni'O), granulated alumiini oxide (A13 and granulated copper le (G110).

a. The method of producing chloroform, tetrachlorethylene and the like, which consists in compressing dry and purified hydrochloric acid gas and pure and dry carbon monoxide, to a pressure of from 1000 to 3000 lbs. per square inch, in mixing the compressed gases in theoretical proportions and in treating the mixture of compressed gases by the contact process, at a high tempera- 5 ture, that is above 400 F., the contact mass containing for instance equal parts by weight of granulated nickel oxide (NiO) granulated nickel chloride (NiCl granulated copper oxide (CuO), granulated copper chloride (CuCl granulated aluminum oxide (A1 0 and granulated aluminum chloride (Al Cl RICHARD T HURM. 

